What is a good way to add 28 + 7?
Explanation:
Counting on from the bigger number is a smart strategy!
You have 45 stickers. Your friend gives you 19 more. How many stickers do you have now?
Explanation:
45 + 19 = 64. Well done!
What is 56 + 27?
Explanation:
56 + 27 = 83. Ones: 6+7=13, carry 1. Tens: 5+2+1=8.
Which strategy helps you add 39 + 8 quickly?
Explanation:
Counting on from the bigger number is fast and easy!
What is 72 - 19?
Explanation:
72 - 19 = 53. Ones: 2-9 needs borrow, 12-9=3, Tens: 6-1=5.
You have 64 crayons. You give 28 to your friend. How many crayons are left?
Explanation:
64 - 28 = 36. Great job!
What is a quick way to check 45 + 28 = 73?
Explanation:
Using the opposite operation (subtraction) is a smart way to check!
What is 57 + 36?
Explanation:
57 + 36 = 93. Ones: 7+6=13, Tens: 5+3+1=9.
Which is the best way to solve 81 - 47?
Explanation:
All strategies can help, but using a number line or counting back is very useful!
There are 65 apples on the tree. 29 fall down. How many apples are still on the tree?
Explanation:
65 - 29 = 36. Well done!
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